http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59743
--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> --- (In reply to Jeffrey A. Law from comment #5) > I think we can just check DF_INSN_LUIDs here to catch this case. My systems > are busy right now, but I should be able to nail this down as soon as one > frees up. But is DF_INSN_LUID always computed? I mean, for -O2 it probably is, but what about -O -free ? For -O I think the live problem isn't on and thus I think DF_INSN_LUID isn't computed. The DF documentation is unfortunately non-existent :(.
